@Lure That seems to me that maybe the image selector was not cleared. I don’t know how the TLP works behind the scenes to select thumbnails, but I assume there is an
img element behind the scenes.
img element has a file selected and you try to select the same image again without clearing the
img element beforehand, it won’t trigger a change (so it would be like no action was executed by the user). But if you choose another image and then choose the first one the change will be triggered. In SPAs (like discourse) it could be worse if the same
img element is used for different pages.
Your issue seems like this, but I don’t know if the original issue is the same. Also, this would only happen if you selected the same image before, so I don’t know if this is really your issue, just my 2 cents. If this is really the issue, the
img element should be cleared by the plugin even if the upload was canceled.